Poly-fil works wonders. I used to use it in my subwoofer boxes back in my sound system days. I kinda packed them medium firm if that makes sense. Enough to kinda have to push the sub in as you go to screw it in.

Anybody want to give a short tutorial on how to do this for a moron like me? Sounds like a necessary mod, but I'm not exactly sure where to put the filler. Behind speakers? In front of speakers? Both? Contacting speaker cone? Help?

Your not a moron?! Just eager to learn things :-) Poly-fil should be placed behind the speaker inside of the speaker box. I don't recommend that it touches the cone since it could cause problems with the sound. The backside of the speaker has a "cage" so that will protect it from touch. Hope this helps.

Anybody want to give a short tutorial on how to do this for a moron like me? Sounds like a necessary mod, but I'm not exactly sure where to put the filler. Behind speakers? In front of speakers? Both? Contacting speaker cone? Help?

I've always just cut upon an old pillow and pushed the stuffing in there. Works great.

anybody want to give a short tutorial on how to do this for a moron like me? Sounds like a necessary mod, but i'm not exactly sure where to put the filler. Behind speakers? In front of speakers? Both? Contacting speaker cone? Help?

Anybody want to give a short tutorial on how to do this for a moron like me? Sounds like a necessary mod, but I'm not exactly sure where to put the filler. Behind speakers? In front of speakers? Both? Contacting speaker cone? Help?

Hey Bill!

Just remove one of the rear speakers and begin stuffing it in towards the dome light. As to the rest of your question, I am kind of wondering myself, I am not sure how tight to pack it. I didn't put too much around speakers, and it made a ginormous difference. Just want full potential, so hopefully someone chimes in.

This mod may have prevented me from buying a new deck for a few years at least!

Your not a moron?! Just eager to learn things :-) Poly-fil should be placed behind the speaker inside of the speaker box. I don't recommend that it touches the cone since it could cause problems with the sound. The backside of the speaker has a "cage" so that will protect it from touch. Hope this helps.

Bingo. Thank you for the perfect answer.

And your right, I can't be a moron.... If it is true that one learns from their mistakes, I must know an awfully lot about just about everything!

I packed rear sub and two sound bar speakers with polyfill. I did not replace the stock Infinity speakers. Good news was it only took about an hour. Bad news was with the stock speakers the improvement in sound was only very modest.

I packed rear sub and two sound bar speakers with polyfill. I did not replace the stock Infinity speakers. Good news was it only took about an hour. Bad news was with the stock speakers the improvement in sound was only very modest.

I replaced my head, added a powered sub, an replaced all four speakers with kickers. I am hoping this little cheap trick will help especially up front since there is really nothing there to help push the sound.

I replaced my head, added a powered sub, an replaced all four speakers with kickers. I am hoping this little cheap trick will help especially up front since there is really nothing there to help push the sound.

I would definitely give it a shot, it woke up the Polks in the soundbar.

Apparently it helps with sound imaging too.

I used this song to test before and after, Wowsa, what a difference, I am smiling
Artist: Daft Punk
Song: Voyager

I never heard of this. Sounds almost like a bad joke, putting pillows behind your speakers....

But I guess it would be nice if someone could post some (simple) pictures to explain a wee bit better and a sound sample before and after would make it complete off course! However, I guess recording the sound would not really work...

Sound waves technically echo inside of the speaker box. Think of it as when you go to indoor concerts. The walls have the padded squares. This helps prevent/reduce echo and it also helps to enhance the acoustics.

After removing the cover to the sub, the speaker did not want to come out. I hooked the short 'el' end of a small Allen wench, held in vice-grips, into the rectangular opening in the bottom of the speaker frame, and it pulled out easily.

After removing the cover to the sub, the speaker did not want to come out. I hooked the short 'el' end of a small Allen wench, held in vice-grips, into the rectangular opening in the bottom of the speaker frame, and it pulled out easily.